<textarea nz-input [(ngModel)]="i.memo" name="memo" nzAutosize placeholder="最多50个字符" maxlength="50"></textarea>
<div class="drawer-footer">
  <button nz-button (click)="close()">关闭</button>
  <button nz-button nzType="primary" (click)="save()">保存</button>
</div>
